{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "It was concluded that morphine catalepsy can be elicited by opioid and cholinergic receptors , and the potentiation of morphine induced by nicotine may also be mediated through cholinergic receptor mechanisms ."}
{"Chemical": ["morphine", "nicotine"], "Disease": ["catalepsy"]}